3 结果
OBJECTIVE
To study the chemical constituents of Lagotis yunnanensis W. W. Smith.
METHODS
Compounds were isolated from the ethanolic extract of the title herb by silica gel column chromatography, and their structures were identified by physical and chemical evidences and spectral
OBJECTIVE
To study the chemical constituents of Lagotis brevituba.
METHODS
The chemical constituents were isolated and purified by silica gel column chromatography, polyamide column chromatography, and semi-preparative HPLC, and their structures were elucidated on the basis of analysis of IR,NMR,
OBJECTIVE
To study on the chemical consitituents of Lagotis brevituba.
METHODS
The chemical consitituents were isolated by silica gel column chromatography, polyamide column chromatography and semi-preparative HPLC, and their structures were identified by spectroscopic methods.
RESULTS
Eight